A long shunt compound motor takes a current of 42 A. from a 230 V source. The generator parameters are Ra = 0.1 ohm, Rse = 0.2 ohm and Rsh = 50 ohm. If the friction and windage losses amount to 400 W. Determine the overall efficiency of the machine. we Ase na Vs Ash 1Ish

A long shunt compound motor takes a current of 42 A. from a 230 V source. The generator parameters are Ra = 0.1 ohm, Rse = 0.2 ohm and Rsh = 50 ohm. If the friction and windage losses amount to 400 W. Determine the overall efficiency of the machine. we Ase na Vs Ash 1Ish

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 12RQ

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

A long shunt compound motor takes a current of 42 A. from a 230 V source. The generator
parameters are Ra = 0.1 ohm, Rse = 0.2 ohm and Rsh = 50 ohm. If the friction and windage losses
amount to 400 W. Determine the overall efficiency of the machine.
we
Ase
na
Vs
Ash 1Ish

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